February 25, 2017

Homework Help: Chemistry

Posted by Kim on Monday, March 21, 2011 at 3:22pm.

A mixture of ethyne gas (C2H2) and methane gas (CH4) occupied a certain volume at a total pressure of 16.8 kPa. When the sample burned, the products were CO2 gas and H2O vapor. The CO2 was collected and its pressure found to be 25.2 kPa in the same volume and same temperature as the original mixture. What percentage of the original mixture was methane?

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